TAG Heuer Men's CN211A.FT8001 2000 Exclusive Aquagraph Watch Quality Swiss Automatic Movement; Functions without a battery; Powers automatically with the movement of your arm Case diameter 42 millimeters, 15 millimeters thickness Black rubber band with buckle Automatic Calibre 60 movement; Chronograph; luminous hands and hour markers; sapphire crystal dial Water-resistant to 1640 feet (500 M)